Indonesia orders evacuations as volcano threatens

October 25, 2010

Authorities in Indonesia have raised an alert for the active volcano Merapi

Enlarge

File photo shows the volcano Merapi spewing smoke in Indonesia. The country has raised its alert for the active volcano to its highest level on Monday and ordered people living nearby to move immediately to safer ground.

Indonesia raised its alert for Mount Merapi to its highest level on Monday and ordered people living near the rumbling volcano to move immediately to safer ground.

Seismic activity has escalated dramatically at the on the densely populated island of Java, with increasing spurts and about 500 multi-phased volcanic earthquakes recorded over the weekend, officials said.

The state office of volcanology upgraded its alert level to red at 6:00 am (2300 GMT), signalling an eruption could be imminent.

"The magma has been pushed upwards due to the escalating seismic energy and it's about a kilometre (mile) below the crater," government volcanologist Surono said.

People had been ordered to evacuate a danger zone of 10 kilometres (six miles) from the crater of the 2,914-metre (9,616-foot) mountain.

The volcano, 26 kilometres south of Yogyakarta, is the most active of the 69 volcanoes with histories of eruptions in .

Map showing the location of the volcanic Mount Merapi in Indonesia
Enlarge

Map showing the location of the volcanic Mount Merapi in Indonesia.

It last erupted in June 2006 killing two people, but its deadliest eruption occurred in 1930 when more than 1,300 people were killed. Heat clouds from another eruption in 1994 killed more than 60 people.

"It currently has more energy than before the 2006 eruption. We haven't found strong indications that it will erupt explosively as it did in 1930 but there is still a possibility," Surono said.

(c) 2010 AFP

Filter


Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

Quantum_Conundrum
Oct 25, 2010

Rank: not rated yet
1km below the crater places the magma chamber inside the cone, above the surrounding landscape, so this thing is ready to pop any day now.

Volcanos in this area tend to be stratovolcanos capable of some of the most violent eruptions on the planet, as the magmas are often very thick, with an extremely high concentration of trapped gases.

This particular volcano is about 30 miles inland, which means it shouldn't have too much water nearby to feed into the magma chamber (sudden collapse of water into a magma chamber is one of the biggest causes of larger explosions.) So the chances of a VEI 6 or greater eruption are less than if it was closer to the coast.

It will probably end up doing about what it has in the past.
Rank 5 /5 (5 votes)
Relevant PhysicsForums posts

More news stories

Asteroid nudged by sunlight: Most precise measurement of Yarkovsky effect

Scientists on NASA's asteroid sample return mission, Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx), have measured the orbit of their destination asteroid, ...

Space & Earth / Space Exploration

created 50 minutes ago | popularity not rated yet | comments 0 | with audio podcast

Tiny planet-finding mirrors borrow from Webb Telescope playbook

NASA's next flagship mission — the James Webb Space Telescope — will carry the largest primary mirror ever deployed. This segmented behemoth will unfold to 21.3 feet in diameter once the observatory ...

Space & Earth / Space Exploration

created 51 minutes ago | popularity not rated yet | comments 0

China hits back at claims it is blocking climate talks

China hit back Thursday at claims it was holding up global climate talks in Germany, saying the United States, Europe and other rich states were the ones applying the brakes.

Space & Earth / Environment

created 46 minutes ago | popularity not rated yet | comments 0

New mapping of Mars shows western Medusae Fossae formation older than once thought

(Phys.org) -- Recent geologic mapping of the Medusae Fossae Formation on Mars—an intensely eroded deposit near the northern edge of the cratered highlands—has revealed a wider distribution of its ...

Space & Earth / Space Exploration

created 1 hour ago | popularity not rated yet | comments 0 | with audio podcast

Organic carbon from Mars, but not biological

Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously ...

Space & Earth / Space Exploration

created 4 hours ago | popularity not rated yet | comments 0 | with audio podcast


Study provides compelling evidence for an effective new treatment for tinnitus

According to new research, a multidisciplinary approach to treating tinnitus that combines cognitive behaviour therapy with sound-based tinnitus retraining therapy is significantly more effective than currently available ...

'Personality genes' may help account for longevity

"It's in their genes" is a common refrain from scientists when asked about factors that allow centenarians to reach age 100 and beyond. Up until now, research has focused on genetic variations that offer a physiological advantage ...

Slip-and-slide power generators

Researchers from Vestfold University College in Norway have created a simple, efficient energy harvesting device that uses the motion of a single droplet to generate electrical power.

Brentuximab vedotin effective in large-cell lymphoma

(HealthDay) -- More than half of patients with relapsed or refractory systemic anaplastic large-cell lymphoma (ALCL) treated with the CD30-directed antibody-drug conjugate brentuximab vedotin achieve a complete ...

Autism often not diagnosed until age 5 or older: U.S. report

(HealthDay) -- Even though autism symptoms typically emerge before age 3, most children with autism are diagnosed when they're 5 or older, a new snapshot of autism in America shows.

Apple VP: New project is 'most important,' 'best work we've done'

Jonathan Ive, Apple's senior vice president of industrial design, said that despite the iMac, iPhone, iPod or iPad, Apple's current project is its best.